Pneumatic Conveying

Advantages of Pneumatic Conveying Systems:

Hygienic: Ideal for handling food, pharmaceuticals and other sensitive materials where the possibility of contamination must be minimized.

Flexible: Can be easily routed around obstacles and over reasonably long distances

Low Maintenance: Few moving parts mean pneumatic conveying systems are generally less prone to wear and tear than mechanical conveyors

Gentle Handling: Suitable for fragile materials that other types of conveyors could damage.

Lean phase pressure conveying

A lean (or dilute) phase positive pressure system transfers bulk materials in enclosed conveying pipelines from a source to one or more destinations. Each system may include rotary airlock valves, blowers, and delivery equipment. Bulk materials are introduced to the pipeline at a high-pressure location, are carried along the pipework at relatively high velocities, and are separated from the conveying medium at the terminal point using filters or cyclones.

Negative pressure systems, often called vacuum conveying systems, are conveying systems operating at less than atmospheric pressure. Lean (or dilute) phase vacuum conveying systems are typically used to transport bulk goods from single or multiple sources, such as trucks, railway wagons, stockpiles, and storage vessels, to one or more destinations. Dilute- phase vacuum systems typically carry bulk materials in the conveying pipeline using positive displacement exhausters (Roots type) or low-pressure high flow vacuum pumps.

Dense phase pressure conveying

The dense phase conveying system is made up of a pressure tank, various valves to control the admission of the product and the transport medium, plus the associated control equipment. Depending on the customer's automation needs, the system can be run automatically using a PLC and linked to SCADA. The pressure dense phase conveying system (pressure) is a dust-tight operation that produces no emissions while maintaining a high conveying pressure. The convey velocity in these systems can be tailored to suit the type of product being conveyed. Filters are installed at the destination point to separate the product from the transport medium.

Dense phase vacuum conveying

The dense phase vacuum conveying system uses a high-efficiency vacuum pump to generate the gas pressure differential necessary to transfer products through a pipeline. It is frequently utilized for materials prone to particle size deterioration, such as agglomerated powders, pellets and granules. This approach allows for slow material transit, which reduces wear and tear, minimizes bulk density fluctuations, and ensures low material deterioration. The system's high material-to-air ratio saves energy, and the absence of rotating elements reduces maintenance expenses.

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